HU179274B - Electrode for discharge lamps and method for making thereof - Google Patents

Electrode for discharge lamps and method for making thereof

Info

Publication number
HU179274B
HU179274B HU75PI475A HUPI000475A HU179274B HU 179274 B HU179274 B HU 179274B HU 75PI475 A HU75PI475 A HU 75PI475A HU PI000475 A HUPI000475 A HU PI000475A HU 179274 B HU179274 B HU 179274B
Authority
HU
Hungary
Prior art keywords
electrode
making
discharge lamps
lamps
discharge
Prior art date
Application number
HU75PI475A
Other languages
Hungarian (hu)
Inventor
Tjepke H Ekkelboom
Stratum Johannes A Van
Original Assignee
Philips Nv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Nv filed Critical Philips Nv
Publication of HU179274B publication Critical patent/HU179274B/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes
    • H01J61/073—Main electrodes for high-pressure discharge lamps
    • H01J61/0732—Main electrodes for high-pressure discharge lamps characterised by the construction of the electrode
HU75PI475A 1974-06-12 1975-06-11 Electrode for discharge lamps and method for making thereof HU179274B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7407813,A NL175480C (en) 1974-06-12 1974-06-12 ELECTRODE FOR A DISCHARGE LAMP, METHOD FOR MANUFACTURING SUCH ELECTRODE AND DISCHARGE LAMP PROVIDED WITH SUCH ELECTRODE.

Publications (1)

Publication Number Publication Date
HU179274B true HU179274B (en) 1982-09-28

Family

ID=19821527

Family Applications (1)

Application Number Title Priority Date Filing Date
HU75PI475A HU179274B (en) 1974-06-12 1975-06-11 Electrode for discharge lamps and method for making thereof

Country Status (13)

Country Link
US (1) US4002940A (en)
JP (1) JPS5745026B2 (en)
AT (1) AT353355B (en)
BE (1) BE830061A (en)
BR (1) BR7503624A (en)
CA (1) CA1029079A (en)
DE (1) DE2524768C2 (en)
ES (1) ES438388A1 (en)
FR (1) FR2275023A1 (en)
GB (1) GB1490158A (en)
HU (1) HU179274B (en)
IT (1) IT1038803B (en)
NL (1) NL175480C (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1053518A (en) * 1976-06-30 1979-05-01 Frederick J. Marsee Internal combustion engine with emission control
US4340836A (en) * 1978-09-11 1982-07-20 General Electric Company Electrode for miniature high pressure metal halide lamp
US4275329A (en) * 1978-12-29 1981-06-23 General Electric Company Electrode with overwind for miniature metal vapor lamp
JPS5598434A (en) * 1979-01-22 1980-07-26 Toshiba Corp Electrode for discharge tube
JPS592145B2 (en) * 1979-10-01 1984-01-17 株式会社東芝 short arc light discharge lamp
GB2079036A (en) * 1980-06-20 1982-01-13 Gen Electric Electron emitting coating in metal halide arc lamp
FR2498372A1 (en) * 1981-01-16 1982-07-23 Thomson Csf DIRECT HEATING CATHODE, METHOD FOR MANUFACTURING SAME, AND ELECTRONIC TUBE INCLUDING SUCH A CATHODE
JPS58108622A (en) * 1981-12-21 1983-06-28 三菱電機株式会社 Electrode material for vacuum switch
EP0115654B1 (en) * 1982-12-30 1987-09-09 Koninklijke Philips Electronics N.V. High-pressure sodium discharge lamp
DE3300449A1 (en) * 1983-01-08 1984-07-12 Philips Patentverwaltung Gmbh, 2000 Hamburg METHOD FOR PRODUCING AN ELECTRODE FOR A HIGH PRESSURE GAS DISCHARGE LAMP
US4528478A (en) * 1983-06-09 1985-07-09 Gte Products Corporation Single-ended metal halide discharge lamp with minimal color separation
CA1255746A (en) * 1983-06-09 1989-06-13 George J. English Single-ended metal halide discharge lamps and process of manufacture
US4766348A (en) * 1983-06-09 1988-08-23 Gte Products Corporation Single-ended metal halogen lamp and fabrication process employing ionization potential selection of additive gases
US4822312A (en) * 1983-12-05 1989-04-18 Gte Products Corporation Electrode for high intensity discharge lamps
HU191305B (en) * 1984-03-29 1987-02-27 Tungsram Rt,Hu High pressure sodium or metal halogen lamp for dc operation
US4924135A (en) * 1988-07-18 1990-05-08 Vapor Technologies Inc. Electrode for vapor deposition and vapor-deposition method using same
DE69007645T2 (en) * 1989-02-01 1994-10-20 Philips Nv High pressure gas discharge lamp.
DE9415217U1 (en) * 1994-09-21 1996-01-25 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh High pressure discharge lamp
KR19990021836A (en) * 1996-03-22 1999-03-25 엠. 제이. 엠. 반캄 High-pressure metal halide lamp
US6492772B1 (en) * 1999-02-10 2002-12-10 Matsushita Electric Industrial Co., Ltd. High pressure discharge lamp, high pressure discharge lamp electrode, method of producing the high pressure discharge lamp electrode, and illumination device and image display apparatus respectively using the high pressure discharge lamps
US6705914B2 (en) 2000-04-18 2004-03-16 Matsushita Electric Industrial Co., Ltd. Method of forming spherical electrode surface for high intensity discharge lamp
DE10062974A1 (en) * 2000-12-16 2002-06-20 Philips Corp Intellectual Pty High pressure gas discharge lamp and process for its manufacture
US6659829B2 (en) 2002-01-09 2003-12-09 Federal-Mogul World Wide, Inc. Single-ended halogen lamp with IR coating and method of making the same
WO2007026288A2 (en) * 2005-09-02 2007-03-08 Philips Intellectual Property & Standards Gmbh High-pressure gas discharge lamp
US20100301737A1 (en) * 2009-05-26 2010-12-02 Alex Mann Low work function electrode
JP5881741B2 (en) * 2011-12-20 2016-03-09 株式会社東芝 Tungsten alloy and tungsten alloy parts, discharge lamp, transmitter tube and magnetron using the same
US20130224504A1 (en) * 2012-02-24 2013-08-29 Henry H. Thayer Method for coating a substrate

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2725498A (en) * 1952-06-25 1955-11-29 Westinghouse Electric Corp Disc seal for electron gaseous discharge device
NL269416A (en) * 1960-09-21
US3590242A (en) * 1969-06-12 1971-06-29 Gen Electric Making fused thorium carbide-tungsten cathodes for electron guns

Also Published As

Publication number Publication date
FR2275023B1 (en) 1978-05-19
NL175480C (en) 1984-11-01
NL175480B (en) 1984-06-01
ATA437175A (en) 1979-04-15
BR7503624A (en) 1976-06-22
FR2275023A1 (en) 1976-01-09
ES438388A1 (en) 1977-01-16
JPS517777A (en) 1976-01-22
US4002940A (en) 1977-01-11
IT1038803B (en) 1979-11-30
DE2524768A1 (en) 1976-01-02
NL7407813A (en) 1975-12-16
AT353355B (en) 1979-11-12
JPS5745026B2 (en) 1982-09-25
BE830061A (en) 1975-12-10
CA1029079A (en) 1978-04-04
GB1490158A (en) 1977-10-26
DE2524768C2 (en) 1983-01-27

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Legal Events

Date Code Title Description
HU90 Patent valid on 900628
HMM4 Cancellation of final prot. due to non-payment of fee